❗️HELP ASAP❗️loves me but won’t commit. Should I leave?

So this morning I talked to my “bf” (7months together but not official) that I felt used that he would tell me he loves me and I go on vacation with his family and hang out with them 2-4 whole days a week and call me his gf in front of them but constantly sleeps with other girls he meets on dating apps and messages them even while we are hanging out together. I said I’ve always been in an open relationship before and I’ve never felt this way where I wanted to be with one person. What he got out of that conversation is “well I’ve never had an open relationship but if that’s what you want im open to it.” That wasn’t my question at all. He says he loves me and showed tears saying I’m special to him and he learns so much from me but he never gave me a straight answer the two times I asked him if he was still sleeping with other people so I can decided what I wanted out of this relationship. He said that I could be his 100% or 99% girl and have flings if I wanted, which broke my heart. But again, he never answers what he want, only ask what I want. I think he’s asked me before if I wanted to be monogamous when I was very emotional and crying and I think I nodded but it never came up again. He asks if It seems like he likes me but not to the point of commitment or he is just not that type. I’m waiting at his place for him to come back from his lecture so we can continue to talk about this. He’s surprised because he didn’t know I felt this way. I have laid all my feeling out for him and he still can’t bring himself to commit. Is it time to leave?